Messages in this thread Patch in this message | | | Date | Mon, 11 Dec 2006 15:26:26 +0530 | From | "Amitabha Roy" <> | Subject | [patch 1/1] oprofile: Add a special cookie for the VDSO region |
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Emit a special VDSO_COOKIE for VDSO regions instead of simply marking them as anon.
Signed-off-by: Amitabha Roy <amitabha.roy@gmail.com> --- diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c index 78c2e6e..7f879db 100644 --- a/drivers/oprofile/buffer_sync.c +++ b/drivers/oprofile/buffer_sync.c @@ -250,7 +250,14 @@ static unsigned long lookup_dcookie(stru vma->vm_file->f_path.mnt); *offset = (vma->vm_pgoff << PAGE_SHIFT) + addr - vma->vm_start; - } else { + } +#ifdef CONFIG_X86_32 + else if(mm->context.vdso==vma->vm_start){ + cookie = VDSO_COOKIE; + *offset = addr; + } +#endif + else { /* must be an anonymous map */ *offset = addr; } diff --git a/drivers/oprofile/event_buffer.h b/drivers/oprofile/event_buffer.h index 9241627..edc8ee2 100644 --- a/drivers/oprofile/event_buffer.h +++ b/drivers/oprofile/event_buffer.h @@ -35,6 +35,7 @@ #define CTX_TGID_CODE 7 #define TRACE_BEGIN_CODE 8 #define TRACE_END_CODE 9
+#define VDSO_COOKIE ~1UL #define INVALID_COOKIE ~0UL #define NO_COOKIE 0UL - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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